Simple web server (v0.1-dev)

Usage: python3 main.py [options]

Options:
    -p, --port
        Port to use for receiving connections

    -h, --history-length
        Amount of messages (message history) that would be sent to new clients. Negative values
        are accepted as well - they would mean that user will not get some new messages even
        though it is connected to server (for example, -5 will make client lose 5 messages
        which would be sent to him otherwise)
